Gas in Massachusetts averaged $2.93 in 2021 — $3.47 in today’s money
Average, that year
$2.93
In 2025 dollars
$3.47
The average price of a gallon of regular gasoline in Massachusetts across 2021, shown both as it was at the pump and adjusted for inflation to constant 2025 dollars (CPI-U).
Across the year
How Massachusetts prices moved through 2021
Weekly average for regular gasoline. The year’s high was $3.40 the week of November 8, 2021; the low was $2.21 the week of January 4, 2021 — a swing of 53.7%.
View the weekly data (52 weeks)
| Week of | Nominal | 2025 $ |
|---|---|---|
| January 4, 2021 | $2.21 | $2.71 |
| January 11, 2021 | $2.27 | $2.78 |
| January 18, 2021 | $2.33 | $2.86 |
| January 25, 2021 | $2.36 | $2.89 |
| February 1, 2021 | $2.38 | $2.91 |
| February 8, 2021 | $2.42 | $2.96 |
| February 15, 2021 | $2.46 | $3.00 |
| February 22, 2021 | $2.55 | $3.11 |
| March 1, 2021 | $2.63 | $3.19 |
| March 8, 2021 | $2.67 | $3.25 |
| March 15, 2021 | $2.74 | $3.33 |
| March 22, 2021 | $2.76 | $3.35 |
| March 29, 2021 | $2.74 | $3.33 |
| April 5, 2021 | $2.74 | $3.31 |
| April 12, 2021 | $2.72 | $3.28 |
| April 19, 2021 | $2.74 | $3.31 |
| April 26, 2021 | $2.75 | $3.32 |
| May 3, 2021 | $2.78 | $3.34 |
| May 10, 2021 | $2.84 | $3.40 |
| May 17, 2021 | $2.89 | $3.46 |
| May 24, 2021 | $2.90 | $3.48 |
| May 31, 2021 | $2.90 | $3.48 |
| June 7, 2021 | $2.91 | $3.46 |
| June 14, 2021 | $2.92 | $3.47 |
| June 21, 2021 | $2.93 | $3.49 |
| June 28, 2021 | $2.96 | $3.52 |
| July 5, 2021 | $2.99 | $3.55 |
| July 12, 2021 | $3.00 | $3.56 |
| July 19, 2021 | $3.01 | $3.57 |
| July 26, 2021 | $3.00 | $3.55 |
| August 2, 2021 | $3.01 | $3.56 |
| August 9, 2021 | $3.02 | $3.57 |
| August 16, 2021 | $3.03 | $3.57 |
| August 23, 2021 | $3.02 | $3.57 |
| August 30, 2021 | $3.03 | $3.58 |
| September 6, 2021 | $3.07 | $3.61 |
| September 13, 2021 | $3.07 | $3.61 |
| September 20, 2021 | $3.08 | $3.62 |
| September 27, 2021 | $3.08 | $3.62 |
| October 4, 2021 | $3.08 | $3.58 |
| October 11, 2021 | $3.18 | $3.70 |
| October 18, 2021 | $3.28 | $3.81 |
| October 25, 2021 | $3.35 | $3.91 |
| November 1, 2021 | $3.38 | $3.90 |
| November 8, 2021 | $3.40 | $3.93 |
| November 15, 2021 | $3.40 | $3.93 |
| November 22, 2021 | $3.40 | $3.92 |
| November 29, 2021 | $3.39 | $3.92 |
| December 6, 2021 | $3.37 | $3.87 |
| December 13, 2021 | $3.35 | $3.85 |
| December 20, 2021 | $3.35 | $3.84 |
| December 27, 2021 | $3.35 | $3.85 |
Year over year
How 2021 compares, adjusted for inflation
2021 was Massachusetts’s 14th-most-expensive year for gas on record, adjusted for inflation — equivalently, the 11th-cheapest of 24 years (2003–2026).
Every grade
Massachusetts fuel prices by grade in 2021
Year-average price per grade. Premium figures are the spread drivers paid for higher-octane fuel that year.
| Grade | Avg / gal | 2025 $ | vs. regular |
|---|---|---|---|
| Regular | $2.93 | $3.47 | — |
| Midgrade | $3.23 | $3.83 | +30.1¢ |
| Premium | $3.43 | $4.07 | +50.7¢ |
Common questions
Massachusetts gas prices in 2021, answered
- What was the average price of gas in Massachusetts in 2021?
- The average price of regular gasoline in Massachusetts in 2021 was $2.93 per gallon — about $3.47 in 2025 dollars after adjusting for inflation, according to U.S. Energy Information Administration weekly data.
- How high did gas prices get in Massachusetts during 2021?
- Massachusetts's weekly average for regular gasoline peaked at $3.40 the week of November 8, 2021 and bottomed out at $2.21 the week of January 4, 2021 — a swing of 53.7% across the year.
- Were gas prices in Massachusetts higher in 2021 than in 2020?
- Adjusted for inflation, regular gasoline in Massachusetts was more expensive in 2021 than in 2020, up 30.7% year over year.
- How does 2021 rank for gas prices in Massachusetts history?
- Adjusted for inflation, 2021 was the 14th-most-expensive year for regular gasoline in Massachusetts out of the 24 years EIA has published weekly prices (2003–2026).